3x^2+180x+200=0

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Solution for 3x^2+180x+200=0 equation:


Simplifying
3x2 + 180x + 200 = 0

Reorder the terms:
200 + 180x + 3x2 = 0

Solving
200 + 180x + 3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
66.66666667 + 60x + x2 = 0

Move the constant term to the right:

Add '-66.66666667' to each side of the equation.
66.66666667 + 60x + -66.66666667 + x2 = 0 + -66.66666667

Reorder the terms:
66.66666667 + -66.66666667 + 60x + x2 = 0 + -66.66666667

Combine like terms: 66.66666667 + -66.66666667 = 0.00000000
0.00000000 + 60x + x2 = 0 + -66.66666667
60x + x2 = 0 + -66.66666667

Combine like terms: 0 + -66.66666667 = -66.66666667
60x + x2 = -66.66666667

The x term is 60x.  Take half its coefficient (30).
Square it (900) and add it to both sides.

Add '900' to each side of the equation.
60x + 900 + x2 = -66.66666667 + 900

Reorder the terms:
900 + 60x + x2 = -66.66666667 + 900

Combine like terms: -66.66666667 + 900 = 833.33333333
900 + 60x + x2 = 833.33333333

Factor a perfect square on the left side:
(x + 30)(x + 30) = 833.33333333

Calculate the square root of the right side: 28.867513459

Break this problem into two subproblems by setting 
(x + 30) equal to 28.867513459 and -28.867513459.

Subproblem 1

x + 30 = 28.867513459 Simplifying x + 30 = 28.867513459 Reorder the terms: 30 + x = 28.867513459 Solving 30 + x = 28.867513459 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + x = 28.867513459 + -30 Combine like terms: 30 + -30 = 0 0 + x = 28.867513459 + -30 x = 28.867513459 + -30 Combine like terms: 28.867513459 + -30 = -1.132486541 x = -1.132486541 Simplifying x = -1.132486541

Subproblem 2

x + 30 = -28.867513459 Simplifying x + 30 = -28.867513459 Reorder the terms: 30 + x = -28.867513459 Solving 30 + x = -28.867513459 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + x = -28.867513459 + -30 Combine like terms: 30 + -30 = 0 0 + x = -28.867513459 + -30 x = -28.867513459 + -30 Combine like terms: -28.867513459 + -30 = -58.867513459 x = -58.867513459 Simplifying x = -58.867513459

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.132486541, -58.867513459}

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